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After arming the alarm on my vehicle, it goes off for no reason at all. What could be the problem
 

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After arming the alarm on my vehicle, it goes off for no reason at all. What could be the problem
Probably the door lock control module in one of the doors. That’s what my mk4 use to do. If you pull it out there is a solder fix you can do. Personally I would just buy a new one. Don’t cheap out get the vw one to avoid any issues. I have tried the Chinese version and it didn’t work with the alarm system properly. In the end I had to do the job twice and buy the authentic part. If you can run a scan with vcds it may tell you which door switch is acting up.


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Where is the door control module situated?
Inside the door. You have to take off the door panel.
And take the window out to do the job. It’s a pain but I have done it so many times now I could probably do the fix in less than an hour.
Look for the mk4 stupid switch DIY. Google it


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